MOEL SQUARE 12345-10 MOULAR CORE SQUARE IFFUSERS ROUN NECK SQUARE 1, 2, 3 OR ROUN 4-WAY AJUSTABLE NECK SQUARE ISCHARGE ROUN PATTERN NECK Steel Model: 7500 Suffix '-O' adds a steel opposed blade damper is nostrud exerc Model 7500 CEILING IFFUSERS The Nailor 7500 Series iffusers have been specially designed to provide a versatile 'modular core' product which is available in a comprehensive range of sizes and air capacities, providing optimum simplicity and flexibility for field adjustment of the discharge air pattern. They maintain a horizontal ceiling pattern from maximum to minimum flow and make an excellent choice for use in variable air volume systems. The 7500 Series features four individual spring-loaded 'modular' pattern controllers mounted in the neck. They can be adjusted before or after installation, to provide a 1, 2, 3 or 4-way discharge pattern by simply rotating one or more of the pattern controllers which takes only a few seconds. FEATURES: Square neck is standard. Round transition adaptors are available (SR option). Each diffuser features four individually adjustable 'spring-loaded' modular cores. Simple adjustment for a 1, 2, 3 or 4-way horizontal discharge pattern without the use of tools. Inlet collar has 1 1/2" (38) depth for easy duct connection. A wide variety of frame styles to suit most ceiling applications. Optional extended panels to suit modular T-Bar ceiling systems. Optional opposed blade damper with screwdriver slot operator is adjustable from the diffuser face by removing a modular core. Material: Corrosion-resistant steel blades and frame. Finish: AW Appliance White baked enamel finish is standard. Other finishes are available. Modular Core Adjustments 4-way 3-way 3-way 2-way corner 2-way opposite 1-way All diffusers are shipped with the standard 4-way pattern, but the air pattern can be simply field adjusted by rotating the spring loaded pattern controllers. 214
imensional ata and Frame Types Model Series 7500 NOMINAL UCT SIZE + 4 3/4" (121) CEILING OPENING = NOMINAL UCT SIZE + 3" (76) NOMINAL UCT SIZE - 1/4" (6) Type S - Surface Mount Frame OPTIONAL OPPOSE BLAE AMPER 1/4" (6) NOMINAL UCT SIZE + 4 1/2" (114) MIN. CEILING OPENING = NOMINAL UCT SIZE + 1/4" (6) NOMINAL UCT SIZE - 1/8" (3) NOMINAL UCT SIZE - 3/8" (10) Type BS - Beveled Surface Mount Frame (Low Profile) Available uct Sizes Frame Types S and BS 6 x 6 (152 x 152) 12 x 12 (305 x 305) 18 x 18 (457 x 457) 8 x 8 (203 x 203) 14 x 14 (356 x 356) 20 x 20 (508 x 508) 9 x 9 (229 x 229) 15 x 15 (381 x 381) 22 x 22 (559 x 559) 10 x 10 (254 x 254) 16 x 16 (406 x 406) 24 x 24 (610 x 610) OPTIONAL OPPOSE BLAE AMPER 5/8" (16) CEILING IFFUSERS 215
imensional ata and Frame Types Model Series 7500 CM = CEILING MOULE CM - 1/4" (6) NOMINAL UCT SIZE - 1/4" (6) OPTIONAL OPPOSE BLAE AMPER Type L - Lay-In T-Bar Frame CEILING IFFUSERS CM + 5/8" (16) CM = CEILING MOULE CM - 1/16" (2) NOMINAL UCT SIZE - 1/4" (6) OPTIONAL OPPOSE BLAE AMPER SPLINE TYPE IFFUSER FOR ONE-IRECTIONAL EXPOSE T-BAR LAY-IN GRI OR FOR CONCEALE T-BAR GRI. (SPLINES ON TWO OPPOSITE SIES. STEEL LIFT BRACKETS ON THE OTHER TWO SIES). Type M Metal Pan (Snap-in) CM = CEILING MOULE CM - 1/16" (2) 13/16" (21) Type F Fineline 1/4" (6) CM - 5/8" (16) 9/16" (14) 5/16" (8) CM = CEILING MOULE CM - 1/4" (6) NOMINAL UCT SIZE - 1/4" (6) CM - Type SP - Spline Frame Type TL Tegular 3/8" (10) TEGULAR CEILING TILE 15/16" (23) T-BAR Extended Panel iffusers Frame Types L, SP, TL, F and M If the ceiling module is more than 3" (76) larger than the neck size of the diffuser in either or both dimensions, a module-sized extended panel will be added. See the table (below) for the maximum duct size for each module size. Ceiling Module Size CM Frame Types L, SP, M, TL and F Imperial Modules (inches) Metric Modules (mm) Available uct Sizes 12 x 12, 24 x 12 300 x 300, 600 x 300 6 x 6 (152 x 152) 8 x 8 (203 x 203) 9 x 9 (229 x 229) 6 x 6 (152 x 152) 10 x 10 (254 x 254) 15 x 15 (381 x 381) 20 x 20 500 x 500 8 x 8 (203 x 203) 12 x 12 (305 x 305) 9 x 9 (229 x 229) 14 x 14 (356 x 356) 6 x 6 (152 x 152) 10 x 10 (254 x 254) 15 x 15 (381 x 381) 24 x 24 600 x 600 8 x 8 (203 x 203) 12 x 12 (305 x 305) 16 x 16 (406 x 406) 9 x 9 (229 x 229) 14 x 14 (356 x 356) 18 x 18 (457 x 457) 216
HOW TO SPECIFY OR TO ORER (Show complete Model Number and Size, unless "efault" is desired). Modular Core Ceiling iffusers Model Series 7500 7500 - O - 9 x 9-24 x 24 - L - AW - MOEL - Steel 7500 AMPER - No amper (default) - Opposed Blade (steel) O NECK SIZE (inches) 6 x 6, 8 x 8, 9 x 9, 10 x 10 12 x 12, 14 x 14, 15 x 15, 16 x 16, 18 x 18, 20 x 20, 22 x 22, 24 x 24 CEILING MOULE SIZE (Frame Types L, SP, M, TL and F) Imperial (in.) Metric (mm) 12 x 12 300 x 300 20 x 20 500 x 500 24 x 12 600 x 300 24 x 24 600 x 600 ACCESSORIES - None (default) - Earthquake Tabs EQT - Square to Round Transition Collar (04 thru 16 specify) SR AIR BALANCING EVICES Square Neck - Equalizing Grid EGL - amper/equalizing Grid EGL Round Neck - Radial Sliding Blade amper 4250 - Radial Opposed Blade amper 4275 - Butterfly amper 4675 - Equalizing Grid EGR - amper/equalizing Grid EGR FINISH - Appliance White (default) AW - Aluminum AL - Special Custom Color SP FRAME TYPE - Surface Mount S - Bevelled Surface Mount BS - Lay-in T-Bar L - Spline SP - Metal Pan Snap-in M - Fineline F - Tegular (rop Face) TL CEILING IFFUSERS Notes: 1. Consult individual models as to limitations of panel and neck size combinations. 2. If more than one accessory is required, list in order. SUGGESTE SPECIFICATION: Furnish and install Nailor Model Series 7500 Modular Core Ceiling iffusers of the sizes and capacities as shown on the plans and air distribution schedules. The diffuser shall have a heavy gauge, corrosion-resistant steel frame and core. The modular deflectors shall consist of four square, individually adjustable pattern deflectors, factory installed in a 4-way pattern, that are easily field rotated to provide throws in a 1, 2, or 3-way pattern. The diffuser shall have a square duct connection collar that is an integral part of the frame assembly and not be less than 1 1/2" (38) high. The finish shall be AW Appliance White baked enamel (optional finishes are available). (Optional) An opposed blade damper, constructed of heavy gauge corrosion-resistant steel and operable from the face of the diffuser, shall be provided with all units. The manufacturer shall provide published performance data for the diffuser, which shall be tested in accordance with ANSI/ASHRAE Standard 70 1991. 217
CEILING IFFUSERS Performance ata Models 7500 Square Neck Nominal Neck Velocity, FPM 200 300 400 500 600 700 800 900 1000 Neck Size Velocity Pressure.003.006.010.016.022.031.040.051.062 Inches TP.015.032.058.090.130.177.231.293.362 Airflow, CFM 50 75 100 125 150 175 200 225 250 NC 11 17 22 26 29 32 35 4-Way 1-1-1 1-1-2 1-2-3 1-2-3 1-2-4 2-3-4 2-3-5 2-3-5 2-3-5 6 x 6 T 3-Way 1-1-3 1-2-4 2-3-5 2-4-6 3-4-7 3-5-7 4-5-8 4-6-8 5-6-9 2-Way 1-1-3 1-2-4 2-3-5 2-4-6 3-4-7 3-5-7 4-5-8 4-6-8 5-6-9 1-Way 1-2-4 2-3-7 3-4-8 3-5-9 4-7-9 5-7-10 6-8-11 7-8-12 7-9-12 Airflow, CFM 88 133 177 222 266 310 355 399 444 NC 14 20 25 29 32 35 38 4-Way 1-2-4 2-3-6 2-4-8 3-5-9 4-6-10 4-7-11 5-8-11 6-8-12 6-9-13 8 x 8 T 3-Way 2-3-7 3-5-11 5-7-13 6-9-14 7-11-15 8-12-17 10-13-18 11-14-19 12-14-20 2-Way 2-3-7 3-5-11 5-7-13 6-9-14 7-11-15 8-12-17 10-13-18 11-14-19 12-14-20 1-Way 3-5-11 5-8-15 7-11-18 9-13-20 11-15-22 12-16-24 14-18-26 15-19-27 16-20-29 Airflow, CFM 138 208 277 347 416 485 555 624 694 NC 13 20 22 27 31 34 37 40 4-Way 2-3-7 3-5-9 4-7-10 6-8-11 7-9-12 8-9-14 8-10-14 9-11-14 9-11-17 10 x 10 T 3-Way 4-6-12 6-10-14 9-12-16 11-13-18 12-14-20 13-15-22 14-16-23 14-19-25 14-20-26 2-Way 4-6-12 6-10-14 9-12-16 11-13-18 12-14-20 13-15-22 14-16-23 14-17-25 14-18-26 1-Way 6-9-16 9-14-20 13-16-23 14-18-26 16-20-28 17-21-31 18-23-33 20-24-35 21-26-37 Airflow, CFM 200 300 400 500 600 700 800 900 1000 NC 16 23 25 30 34 37 40 43 4-Way 2-4-8 4-6-11 5-8-12 7-10-14 8-11-14 9-11-15 10-12-17 11-13-18 11-14-19 12 x 12 T 3-Way 5-8-14 8-12-17 10-14-20 13-15-22 14-17-24 15-18-26 16-20-28 17-21-30 18-22-32 2-Way 5-8-14 8-12-17 10-14-20 13-15-22 14-17-24 15-18-26 16-20-28 17-21-30 18-22-32 1-Way 7-11-19 11-16-24 14-19-28 17-22-31 19-24-34 21-26-37 22-28-40 24-30-42 25-31-45 Airflow, CFM 272 408 544 680 816 952 1088 1224 1361 NC 18 25 27 32 36 39 42 45 4-Way 3-5-10 5-7-12 6-10-14 8-11-15 10-12-19 11-13-18 12-14-19 12-14-21 13-15-22 14 x 14 T 3-Way 6-9-16 9-14-20 12-16-23 14-18-26 16-20-29 17-21-31 19-23-33 20-25-35 21-26-37 2-Way 6-9-16 9-14-20 12-16-23 14-18-26 16-20-29 17-21-31 19-23-33 20-25-35 21-26-37 1-Way 9-13-23 13-19-28 17-23-33 21-25-37 23-28-40 25-30-44 26-33-47 28-35-49 30-37-51 Airflow, CFM 355 533 711 889 1066 1244 1422 1600 1778 NC 20 27 29 34 38 41 44 47 4-Way 3-5-11 5-8-14 7-11-15 9-13-17 11-14-19 12-14-21 13-15-23 14-17-24 14-17-25 16 x 16 T 3-Way 7-10-18 10-15-23 14-18-27 17-21-30 18-23-33 20-25-36 21-27-38 23-28-41 24-30-43 2-Way 7-10-18 10-15-23 14-18-27 17-21-30 18-23-33 20-25-38 21-27-38 23-28-41 24-31-43 1-Way 10-14-26 14-22-32 20-26-38 24-29-42 26-32-46 28-35-49 30-38-53 32-40-56 34-42-59 CFM - cubic feet per minute FPM - feet per minute velocity TP T NC - total pressure - inches w.g. - throw in feet - Noise Criteria (values) based on 10 db room absorption, re 10-12 watts. Performance Notes: 1. Throws are given at 150, 100 and 50 fpm terminal velocities under isothermal conditions. 2. ata derived from tests conducted in accordance with ANSI/ASHRAE Standard 70 1991. Neck Size Square in Inches Ak Factor 6 x 6 0.1134 8 x 8 0.1932 9 x 9 0.2551 10 x 10 0.3024 12 x 12 0.4526 14 x 14 0.5883 15 x 15 0.6804 16 x 16 0.7728 218
Performance ata Models 7500 Square Neck Nominal Neck Velocity FPM 200 300 400 500 600 700 800 900 1000 Neck Size Velocity Pressure.003.006.010.016.022.031.040.051.062 Inches TP.015.032.058.090.130.177.231.293.362 Airflow, CFM 450 675 900 1125 1350 1575 1800 2025 2250 NC 22 28 30 35 39 42 45 48 4-Way 4-6-13 6-10-15 8-13-18 11-14-20 13-15-22 14-16-24 14-18-26 15-19-27 16-20-29 18 x 18 T 3-Way 8-12-21 12-17-26 15-21-30 19-23-34 21-26-37 23-28-40 24-30-43 26-32-46 27-34-48 2-Way 8-12-21 12-17-26 15-21-30 19-23-34 21-26-37 23-28-40 24-30-43 26-32-46 27-34-48 1-Way 11-16-30 16-25-37 22-30-42 27-33-48 30-37-51 32-40-56 34-42-60 36-45-63 39-48-67 Airflow, CFM 555 835 1110 1390 1665 1945 2220 2500 2775 NC 11 24 30 32 37 41 44 47 50 4-Way 4-7-14 7-11-17 9-14-20 12-15-22 14-17-24 15-18-27 16-20-29 17-21-30 18-22-32 20 x 20 T 3-Way 9-13-23 13-19-29 17-23-34 21-26-38 23-29-41 25-31-45 27-34-48 29-36-50 30-38-53 2-Way 9-13-23 13-19-29 17-23-34 21-26-38 23-29-41 25-31-45 27-34-48 29-36-51 30-38-53 1-Way 13-18-33 18-28-43 25-33-47 30-37-52 33-41-57 36-44-62 38-47-67 41-49-71 43-52-75 Airflow, CFM 675 1000 1345 1680 2015 2350 2690 3025 3360 NC 13 26 32 34 39 43 46 49 52 4-Way 5-8-15 8-12-19 10-15-22 13-17-25 15-19-27 16-20-29 18-22-31 19-23-34 20-25-35 22 x 22 T 3-Way 10-14-26 14-21-32 19-26-37 23-29-42 26-32-46 28-35-48 30-37-52 32-39-55 34-41-58 2-Way 10-14-26 14-21-32 19-26-37 23-29-42 26-32-46 28-35-48 30-37-52 32-39-55 34-41-58 1-Way 14-20-36 20-31-45 28-36-51 33-41-58 36-45-63 39-48-68 41-51-73 45-54-78 47-58-81 Airflow, CFM 800 1200 1600 2000 2400 2800 3200 3600 4000 NC 15 28 34 36 41 45 48 51 54 4-Way 5-8-16 8-13-21 11-16-24 14-19-27 16-21-30 18-22-32 19-24-35 21-26-37 22-27-39 24 x 24 T 3-Way 10-15-28 15-23-35 20-28-41 26-32-45 28-35-49 31-38-53 33-41-57 35-43-61 37-45-64 2-Way 10-15-28 15-23-35 20-28-41 26-32-45 28-35-49 31-38-53 33-41-57 35-43-61 37-45-64 1-Way 14-22-40 22-34-48 30-40-56 36-45-63 40-48-69 43-52-75 45-56-79 48-60-84 51-63-89 CFM - cubic feet per minute FPM - feet per minute velocity TP T NC - total pressure - inches w.g. - throw in feet - Noise Criteria (values) based on 10 db room absorption, re 10-12 watts. Performance Notes: 1. Throws are given at 150, 100 and 50 fpm terminal velocities under isothermal conditions. 2. ata derived from tests conducted in accordance with ANSI/ASHRAE Standard 70 1991. Neck Size Square in Inches Ak Factor 18 x 18 0.9541 20 x 20 1.2096 22 x 22 1.4636 24 x 24 1.7304 CEILING IFFUSERS 219